Fagerberg, Jan, Dag Stockeld, and Rolf Lewensohn. “Combined Treatment Modalities in Esophageal Cancer: Should Chemotherapy Be Included?”. Acta Oncologica 33, no. 4 (January 1, 1994): 439–450. Accessed February 26, 2025. https://medicaljournalssweden.se/actaoncologica/article/view/30691.